[jira] Commented: (AXIS-2208) Add a parameter to wsdl2java to generate minOccurs="0" for nillable types.

["Martin Grotzke (JIRA)" <ax...@ws.apache.org>]

    [ http://issues.apache.org/jira/browse/AXIS-2208?page=comments#action_12320911 ] 

Martin Grotzke commented on AXIS-2208:
--------------------------------------

d'oh, clearly this parameter is nothing to add to wsdl2java, as it concerns the schema generation :)

> Add a parameter to wsdl2java to generate minOccurs="0" for nillable types.
> --------------------------------------------------------------------------
>
>          Key: AXIS-2208
>          URL: http://issues.apache.org/jira/browse/AXIS-2208
>      Project: Apache Axis
>         Type: New Feature
>   Components: WSDL processing
>     Reporter: Martin Grotzke
>     Priority: Minor

>
> hello,
> is it possible to add a parameter to wsdl2java, that forces the generation of minOccurs="0" for nillable types?
> the problem that this solves:
> if you use a wrapper type like Integer in java, it get's translated to an xsd:int.
> if you generate C# classes using .net 1.1, this will be translated to a C# int,
> a primitive type that is not nullable (AFAIK nullable types are introduced in .net 2.0).
> then, when sending a soap request from java to the .net webservice, and leave
> a property of such a wrapper type null, an empty element is sent over the wire.
> the .net deserializer tries to deserialize this element, but fails to create a
> primitive value for this - on the java client side you receive a soap fault.
> if you have the additional attribute minOccurs="0" in your schema, everything's
> ok: when generating classes from the wsdl, for each element with minOccurs="0"
> an additional property is generated like "FooDefined:boolean" (IIRC), that
> can be used by the C#-developer to determine, if the primitive type is initialized.
> when you invoke the webservice, no empty element will be transferred, so the
> .net deserializer does not try to create a primitive value for this, but it initializes
> the "FooDefined:Boolean" correctly.
> to support interop with platforms like .net it would be great to have the possibility
> to specify, if minOccurs="0" shall be generated in the schema for wsdl2java (including the ant task).
> thanx in advance,
> martin

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